CLONE - A teacher can create quiz essay questions

1. Login as a teacher and create two essay questions, one with the response format as plain text and allowing unlimited attachments, and one with the response format as HTML editor and not allowing attachments.
2. Add the essay questions to a quiz.
3. Login as a student and attempt the quiz, including uploading at least one file.
4. Check that only one question allows attachments and only one question has the HTML editor.
5. Login as the teacher and check the student's attempt.
6. Browse to Quiz results > Manual grading in the navigation block and try grading a question.
7. Browse to Quiz results > Grades and check that the graded question appears correctly.